Bump nanoid and shortid in /app/assets

Bumps [nanoid](https://github.com/ai/nanoid) and [shortid](https://github.com/dylang/shortid). These dependencies needed to be updated together.

Updates `nanoid` from 3.3.7 to 3.3.8
- [Release notes](https://github.com/ai/nanoid/releases)
- [Changelog](https://github.com/ai/nanoid/blob/main/CHANGELOG.md)
- [Commits](ai/nanoid@3.3.7...3.3.8)

Updates `shortid` from 2.2.16 to 2.2.17
- [Changelog](https://github.com/dylang/shortid/blob/master/CHANGELOG.md)
- [Commits](dylang/shortid@2.2.16...2.2.17)

---
updated-dependencies:
- dependency-name: nanoid
  dependency-type: indirect
- dependency-name: shortid
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>